Middle distances the focus as World Indoor Tour kicks off in Boston
(IAAF News)

The athletes are already arriving here for the kickoff to the 2019 IAAF World Indoor Tour on Saturday evening (26). But with the collegiate season well underway in North America and a top invitational wrapping up just on the other side of Boston as this meet gets started, what feels like an opening to the professionals can also feel like merging into already-moving traffic - it all depends on your frame of reference.